The sand recovery units with hydro-cyclones are planned and carried out to wash, screen, dry and separate the sand presents into the muddy waters coming from the material washing process.

The sand recovery units with hydro-cyclones and the buckets sand recoverers have the function to receive the mixture of sand and water with the aim to separate them in order to obtain dry sand and recycle the water that can be reused in the process. The sand recovery units with hydro-cyclones, compared to the buckets sand recoverers, assure better washing performances. The drum and log washer are machines used only for the aggregates washing; the drum washer is better to treat very dirty material while the log washer is better for very hard materials.